Clinical differentiation of acute appendicitis and right colonic diverticulitis: A case-control study

Table 2 Logistic regression for differentiating acute appendicitis from acute right colonic diverticulitis

	OR [95%CI]	P-value
Age >40 (yr)	0.62 [0.35-1.08]	0.093
Onset-to-visit interval (d)	0.84 [0.72-0.97]	0.021a
Epigastric/periumbilical pain	1.14 [0.65-2.00]	0.64
RLQ pain	0.28 [0.11-0.71]	0.007a
Nausea/vomiting	3.89 [2.04-7.42]	< 0.001a
Anorexia	2.13 [1.06-4.28]	0.033a
History of unresected appendicitis	3.09 [0.82-11.63]	0.095
History of diverticulitis	0.034 [0.0059-0.20]	< 0.001a
Leukocytosis	1.50 [0.86-2.60]	0.15
High CRP level (>3.0 mg/dL)	0.25 [0.14-0.43]	< 0.001a

^aP-value < 0.05. CRP: C-reactive protein; OR: Odds ratio; RLQ: Right lower quadrant.